libguestfs works on Ubuntu 9.10. You need to apply the five non-finalized patches here, and read the instructions in the first posting carefully.
(Thanks to Wolfgang Richter for prompting me to get this working, Guido Gunther for patch review and Jameson Rollins for fixing debirf for us)
Richard WM Jones 
Didn’t happen to make any .debs by any chance?
No … However you may be able to use the Debian packages.
We are looking for an Ubuntu maintainer, someone who can massage these patches into something which is upstreamable, and/or build and maintain packages for Ubuntu.